Which of the following statement is incorrect?
1. Oxygen is released from water
2. Photosynthesis is a single step reaction
3. Action spectrum of photosynthesis resembles roughly the absorption spectra of chlorophyll a and b.
4. In plants glucose is stored as starch.

Where does photosynthesis takes place?
1. in green leaves
2. in green parts of plant
3. in leaves
4. in complete plant

Identify a,b,c and d labellings in the following diagram.

1. i - stroma lamella; ii- thylakoid; iii-stroma; iv-genetic material
2. i- stroma lamella; ii- grana; iii-stroma; iv-starch granule
3. i- grana; ii- lamella; iii-stroma; iv-starch granule
4. i- stroma lamella; ii- grana; iii-cytoplasm; iv-starch granule

Column I                          Column II
i. grana                        1. dark reaction
ii. stroma                     2. light reaction
                                   3. synthesis of ATP and NADPH+H⁺
                                   4. synthesis of sugar

1. i-b, c; ii-a, 4.
2. i-a, d; ii-b, 3.
3. i-b, d; ii-a,3.
4. i-b; ii-a, c, 4.

How many statements are correct?
i.  Products of dark reaction are substrates of light reaction.
ii. Products of light reaction are substrates of dark reaction.
iii. In the stroma, enzymatic reactions incorporate CO₂ into the plant leading to the synthesis of sugar.
iv. Dark reactions are directly light-driven.
v. Chloroplast is a single membranous organelle.

1. 2
2. 3
3. 4
4. 1

Products of light reaction does not include-
1. ATP & NADPH
2. CO₂
3. O₂
4. Electrons

Absorption spectrum of chlorophyll- ‘a’ is shown by-

1. i
2. ii
3. iii
4. Not shown.

How many pigments are responsible for the color of a plant leaf?
1. 1
2. 2
3. 3
4. 4

After performing the chromatographic separation of a plant leaf, experimentor found bright or blue green colour in the chromatogram. Then this pigment should be-
1. xanthophyll
2. carotenoid
3. chlorophyll a
4. chlorophyll b

Range of wavelength at which chlorophyll-ashows the maximum absorption:
1. 400-450 nm
2. 450-500 nm
3. 650-700nm
4.500-600nm